Q: Service Emissions System light is on
My Service Emissions System light is on.
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The most common cause of the service emissions light coming on is an EVAP (gas vapor) leak. The first place to look for an EVAP leak is the gas cap - especially if you have just gotten fuel. A qualified technician, like one from YourMechanic, will be able to inspect your Service Emission System light and repair any issues you may be having with your car.
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